Home / 3,038.38-4,191.06-1,857.40

Finding the Fourth Proportional to 3,038.38, 4,191.06 and 1,857.40

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Solution

The fourth proportional to 3,038.38, 4,191.06 and 1,857.40 is: 2,562.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.38 : 4,191.06 = 1,857.40 : x
  2. Step 2: Convert to fraction form
    3,038.38/4,191.06 = 1,857.40/x
  3. Step 3: Cross multiply
    3,038.38x = 4,191.06 × 1,857.40
  4. Step 4: Simplify right side
    3,038.38x = 7,784,474.84
  5. Step 5: Solve for x
    x = 7,784,474.84/3,038.38
  6. Step 6: Final answer
    x = 2,562.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.